ejaculatory duct การใช้

• Ejaculatory duct obstruction is the underlying cause for 1 5 % of male infertility.
• Sperm is produced in the testes and enters the ejaculatory ducts via the vas deferens.
• Anteriorly, the long and highly coiled, muscular ejaculatory duct arises from the prostate.
• Reflux of sterile urine ( urine without bacteria ) through the ejaculatory ducts may cause inflammation with obstruction.
• The terminal portion of the ejaculatory duct may be sclerotized to form the intromittent organ, the aedeagus.
• Each ejaculatory duct is formed by the union of the vas deferens with the duct of the seminal vesicle.
• Seminal fluid continues down the ejaculatory duct into the prostate gland, where an alkaline prostatic fluid is added.
• In Addition, calculus ( medicine ) was reported to mechanically block the ejaculatory duct, leading to infertility.
• Due to the blockage of ejaculatory ducts, enlarged seminal vesicles are frequently seen in patients with ejaculatory duct obstructions.
• Due to the blockage of ejaculatory ducts, enlarged seminal vesicles are frequently seen in patients with ejaculatory duct obstructions.
• The ejaculatory duct enters the muscular penis at its base and discharges at the top of the penis through a long hollow stylet.
• The urethra drains the bladder through the prostate gland where it is joined by the ejaculatory duct, and then onward to the penis.
• The ejaculatory duct is derived from an invagination of the epidermal cells during development and, as a result, has a cuticular lining.
• Since ejaculatory duct obstruction is a relatively rare cause of infertility, this possibility may be unfamiliar to some physicians, even some urologists.
• In case of proven fertility but unresolved pelvic pain, even one or both partially obstructed ejaculatory ducts may be the origin of pelvic pain and oligospermia.
• However, this is again neither a proof of an obstruction nor do normal-sized seminal vesicles rule-out an obstruction of the ejaculatory ducts.
• Usually associated to the ejaculatory duct, there is a structure formed basically by a fold of the walls of the male atrium called  penis papilla.
• In some groups, the sperm ducts met in their distal part, forming the ejaculatory duct, which then opens in a cavity called  male atrium.
• The follicles connect to the vas deferens by the vas efferens, and the two tubular vasa deferentia connect to a median ejaculatory duct that leads to the outside.
• The Wolffian duct forms the epididymis, vas deferens, ductus deferens, ejaculatory duct, and seminal vesicle in the male reproductive system and essentially disappears in the female reproductive system.